Wheel-rim.



W. E. WILLIAMS.

WHEEL RIM. APPLICATION man MAY 22, 1912.

Patented Apr. 3,1917.

WILLIAM ERA-STUS WILLIAMS, OF CHICAGO, ILLINOIS.

WHEEL-RIM Specification of Letters Patent.

" Patented Apr. 3,1917.

Application f led May 22; 1912. Serial No. 698,979;

To all whom it may concern Be 1t known that 1, WILLIAM E. WIL- Lmns, a citizen of the l nlted States, resid 'ing at Chi-ago, county of Cook, State of conmaled and protected from toi'eign.1natter although the device as a whole is not conspicuously different from a simple, one piece rim.

1n the accompanying drawings,

Figure 1 is a side view of a portion of a wheel embodying my invention.

Fig. 2 shows in cross section a detachable rim section or member with 'a partof the companion member.

Fig. 3 is a section on the line 33, Fig.v 1, looking in the direction of the arrows.

Fig. is a section on the line 4-l, Fig. 1.

Fig. 5 is a perspective view, partly in section, showing a portion of the wheel rim, or body member thereof.

Fig. 6 -is an analogous view showing a part of the detachable member of the rim.

Fig. 7 is a perspective detail View of certain locking devices. In these figures, 1 and 2 represent the spokes and telly of a common wheel, although the novel rim may be used onwheels of other types. 3 represents the body member and 4- a detachable, coacting member of the novel rim or telly band laterally hooked in the usual way to hold tires of the clencher type and adapted to fit an ordinary wheel and project on each side beyond its telly or equivalent part. On the side where the member 3 meets the companion member it is pressed inward, with respect to the wheel, to form at 5 and at one side of the plane of the telly an annular groove 6 having on the side most distant from the telly a flange parallel to the plane of the wheel and cut away at short intervals to form teeth 7 separated by spaces 8, Fig. 5. side with inclined-surfaces 9 to facilitate engagement hereinafter noted.

The detachable member 4 has,'on the side where it meetsthe member 3 an inwardly All these teeth are provided on onev extending annular flange parallel to the'one just described-and like it cut away to form a set of teeth 10separated by spaces 12 approximately equal in width to the teeth 7,-

and these teeth 10 also have me inal 1nclined surfaces '30 similar to tlf irfaces 9 but on opposite sides and oppositely turned, as shownin Fig. 3. e i

lVhen the detachable member l is in proper position'for moving into engagement with the member'l, that is when it is placed alongside its companion with the centers of both rings in the axis of the wheel hub and with the teeth of one member opposite the spaces between the teeth of the other memher. it may be moved laterally toward its companion until its teeth pass to the opposite side ot" the plane of the teeth of the other set. each tooth in this movementpass ing barely through the notches orspaces between consecutive teeth of the other set. \Vhen this lateral movement is ver flnearly complete, forcible relative rotation of the two members causes the inclined surfaces 9, 30 to impinge, completing the sidewise movement by wedging action. By further rotation, each tooth passes behind the parallel body of a tooth of the other member and into non-wedging engagement, as shown in Fig. 3. The two members are thus interlocked in such relation that but for the joint between the two members and at one side of the plane of the telly, the tire-receiving portion of the rim is identical with a common form ofone-piecerims; and obviously the two can be disen a ed onl bv relative is a rotation.

' To prevent the undesired occurrence of such rotation, a long spring 16 is fixed to the inner face of the portion 5 of the member 8 and provided at its free end with a lug 18 which passes through an opening in the member 3 and enters and laterally fills the space between consecutive teeth of the member 4., as shown in Fig. 3, thus locking the parts. Thisspringis beveled as shown 7 at 19 so that it maybe conveniently engaged and sprung to withdraw the lug from looking position.

The member 4 is provided with a second flange parallel to the first ant separated from it by a space 11 andtlris hange, shown as provided with a lip, pressed portion of the member 3 and is flush with the inner surface of the latter. VlQ-Iffii tne two parts or the rim are locked meets the inwardly together as described, the parts appear to be continuous and theteeth are hidden and protected from foreign matter.

As a guide in bringing the teeth of one member into registry with the spaces between the teeth of the other set and for having an always visible indication of the relative positionsof the two sets, the memher 3 is provided with a rigid stud l4-which projects into a slot in the member 4. When this stud is at one end of the slot, the desired registry is secured, and when it is at the oppositeend the interlocking is I the inner margin of the member 4. Obviously inserting the wrench shaft in the bearing and rotating it compels relative rotation for ocking or unlocking, according to the direction of movement.

\Vhat I claim is:

1. .A- two-part tire-receiving rim adapted to fit around a felly and consisting of a body member pressed inward near one margin to form an outwardly open annular groove alongside the plane of the telly, and

a co-acting detachable flange member adjacent to said margin and provided with' two parallel annular flanges, one inpositlon to he in said groove and the other 1n po-- sition to lie alongside the outer wall of said groove, said flange lying within the groove and said wall being cut away to form sets of teeth, the. teeth of each set being arranged to pass between the teeth of the tion and further having an inwardly pro jecting flange fitting against the outer side of said serrated wall and covering both sets of teeth.

In witness whereof I have hereunto subscribed my name at the city of Chicago on this 31st day of May, 1911, in the presence of two subscribing Witnesses.

WILLIAM ERASTUS WILLIAMS.

\Vitnesses:

\VINFIELD S. WILLIAMS, F. C. MILLER.

Copies of this patent may be obtained for fiveeents eaeh by addressing the Commissioner of Patents,

' Washington, D. G. 

